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杂交油菜黔油22号氮素运筹研究
引用本文:代文东,黄泽素,唐容,李德珍.杂交油菜黔油22号氮素运筹研究[J].贵州农业科学,2009,37(5).
作者姓名:代文东  黄泽素  唐容  李德珍
作者单位:贵州省油料研究所,贵州,贵阳,550006
基金项目:贵州省农业科学院项目 
摘    要:为探索氮素对杂交油菜黔油22号产量的影响及提高氮素的利用率,进行了氮素运筹的试验研究.结果表明:在基肥和苗肥用量相同的情况下,不同的蕾薹肥及初花肥施用比例对黔油22号产量和单株有效角果数的影响呈相同趋势,即随着蕾薹肥用量的增加及初花肥的降低,产量和单株有效角果数逐渐增加.因此,在营养生长和生殖生长两旺的蕾薹期,是决定黔油22号产量的关键施氮期,获得高产的氮素运筹最佳措施是基肥:苗肥:蕾薹肥:初花肥比例为2:3:4:1或2:3:3:2.

关 键 词:杂交油菜  黔油22号  氮素  运筹

The Effects of Different Nitrogen Application Norm at Different Growth Stage on Yield of Qianyou 22 (a Hybrid Rape Variety)
DAI Wen-dong,HUANG Ze-su,LI De-zheng,TANG Rong.The Effects of Different Nitrogen Application Norm at Different Growth Stage on Yield of Qianyou 22 (a Hybrid Rape Variety)[J].Guizhou Agricultural Sciences,2009,37(5).
Authors:DAI Wen-dong  HUANG Ze-su  LI De-zheng  TANG Rong
Institution:Guizhou Institute of Oil Crops;Guiyang;Guizhou 550006;China
Abstract:Qianyou 22,a hybrid rape variety,was tested under different nitrogen application norm at different growth stage to study the effects on its yield and to improve the nitrogen utilization rate.The results showed that different nitrogen application proportions at bolting and first flowering stages have the similar effect on yield and effective podsperplant of Qianyou 22 under the same application amount of basal manure and seedling manure.That is,the yield and effective podsperplant of Qianyou 22 rises with in...
Keywords:hybrid rape  Qianyou 22  nitrogen  operation  
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